Fan acceleration structure

ABSTRACT

The present invention relates to a fan acceleration structure of a shredder having a common shaft for a motor, a fan, and a gear set to enable the motor driving and accelerating the fan through a chain rotation from a drive gear, a connection gear to a driven gear.

BACKGROUND OF THE INVENTION

(a) Field of the Invention

The present invention relates to a fan acceleration structure of a shredder and more particularly for a fan having a gear set to accelerate rotation of a fan.

(b) Description of the Prior Art

A conventional way to disperse heat from a shredder is to add an independent fan, with a separate connection to a power supply, to blow air to a motor, which presents defects such as enlarging the volume of the shredder and also being incapable of increasing fan speed.

SUMMARY OF THE INVENTION

The present invention is to provide a fan acceleration structure of a shredder having a common shaft for a motor and the fan, wherein the fan shaft connecting to a gear set to accelerate the fan speed.

To enable a further understanding of the said objectives and the technological methods of the invention herein, the brief description of the drawings below is followed by the detailed description of the preferred embodiments.

BRIEF DESCRIPTION OF THE DRAWING

FIG. 1 shows an exploded elevational view of the present invention.

FIG. 2 shows a perspective view of the present invention.

FIG. 3 shows a perspective view of a gear set of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIGS. 1˜3. The present invention relates to a fan acceleration structure of a shredder having a motor 100, a fan 200, a drive gear 300, and a connection gear 400, wherein the motor 100 having a motor shaft 101, the fan 200 having a fan bearing 201 at the center, the drive gear 300 having at a center 301 a driven-gear bearing 203 connecting to a driven gear 202 and having a side shaft 302 on the redial direction surface, the connection gear 400, formed between the drive gear 300 and the driven gear 202, having a connection-gear bearing 401 with the side shaft 302 penetrating through the center thereof, and components of the motor shaft 101, the fan bearing 201, the driven gear 202, and the driven-gear bearing 203 connected in serial order. Turning on the motor 100 will drive the driven-gear bearing 203 to rotate the drive gear 300, which then to rotate the fan 200 through the driven gear 202 and the connection gear 400, thereby enabling the fan 200 having an accelerated speed=N1×(drive gear 300/connection gear 400)×(connection gear 400/driven gear 202), when the motor 100 and the drive gear 300 having a speed N1.

Referring to FIG. 2. The motor 100 can be with openings 102 at the other end to facilitate heat dispersal.

It is of course to be understood that the embodiment described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims. 

1. A fan acceleration structure of a shredder comprising a motor, a fan, a drive gear, and a connection gear, wherein the motor having a motor shaft; the fan having at the center a fan bearing penetrated by the motor shaft; the drive gear having the motor shaft fixed at the center and a side shaft on the radial direction surface; and the connection gear having the side shaft at the center and gearing with the drive gear and the driven gear, thereby enabling the motor to drive the fan through a set of gear rotation.
 2. The fan acceleration structure of a shredder as recited in claim 1, wherein the motor comprising openings at the other end for dispersing heat. 